Question about 2004 Lexus ES 330

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Brake fluid contamination--stucking brake--driver's side

"severe brake fluid contamination" 62000m,never changed or added to --reason for this problem --what needs to be done
rotor heated up(fire engine red--smoking)

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If it is just in the master cylinder, replace it and flush with new fluid. The proper way would be to replace the master, the abs unit, the hoses and all 4 calipers. The proper way is expensive, but thorough.

Posted on Jul 02, 2009

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  • Lexus Master
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This is a stuck brake caliper piston not fluid contamination

Posted on Jul 02, 2009

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1 Answer

Why my front brakes are overheating after I replaced/serviced the rear brakes pads ?


Several possibilities exist. Most likely is that you did NOT open the bleeder valves in the rear calipers when you retacted the pistons in the rear calipers. This forces old, dirty, contaminated brake fluid back up into the system. This debris is now stuck in either the ABS control unit or the master cylinder and is causing the front brakes to be slightly applied at all times. You can try to THROUGHLY flush out the brake fluid to remove the contamination. It will take about a gallon of brake fluid to do this. That "might" fix the problem. Otherwise, you need to figure out if the problem is with the master cylinder or the ABS control unit and replace the bad unit.

Aug 22, 2014 | 1989 Mazda MPV

1 Answer

Why do my brakes feel soft and go down to the floor when i apply light pressure but work normal if i get on them hard? I accidently put power steering fluid in when i had a constant leak that i fixed ...


If you've pored or added anything other than brake fluid to the reservoir, then you have contaminated your brake system and may have to replace several components if not the entire system. The reason why the pedal is dropping to the floor is because the seals are leaking internal of your master cylinder. If you wait too long to drain the system, you may have to replace the entire brake system hardware.

Jul 28, 2011 | Ford Ranger Cars & Trucks

2 Answers

Can I add brake fluid if it's low, like adding oil and where do I put the brake fuild?


Yes, you will need to put it in the reservoir for brake fluid, it will look something like this.

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Make sure you use the correct type of brake fluid as listed in your owners manual. (Probably DOT3)

May 04, 2011 | 2005 Pontiac Grand Prix

2 Answers

What are the steps to flushing the brake system? or site?


There is a drain plug on the brakes. You have to remove the drain plug and pump the brakes until clean fluid comes out, each wheel at a time. I would let a brake place do it. They have the tool to put clean fluid in and you don't need anyone to pump the brakes.

Sep 03, 2010 | 2004 Pontiac Grand Prix

1 Answer

Back brakes lock up


There are several conditions that can cause this to happen. You want to start out by checking the parking brake assembly, particularly the cable for the right rear or passenger side brake. Make certain the cable moves freely when the park brake is applied and released completely when the park brake is disengaged.
Next, remove the rear brake drum and check for any oil, grease or brake fluid contamination of the brake shoes. Any contamination of this type will cause the brake to hang up when applied.
If that checks good, make sure the brake system hardware if working properly and components have not dislodged from there installed position be sure there are no broken return springs or very rusted and weak components.
Generally what happens is a wheel cylinder begins to leak, contaminated the shoes and cause them to become sticky when the shoe contacts the drum or a return spring breaks or comes off for various reasons.
Check it out and let me know.
Regards,

Oct 04, 2009 | 1997 Pontiac Sunfire

1 Answer

Rear drum brake locked up . just drivers side. emergency brake seemed ok until i broke it but the brake was locked before i messed with the emergency brake. drum will not move even when driving car


remove the brake line to release the pressure. Look at the brake fluid to see if its contaminated. Its common for when the wrong fluid is added to brake fluid you will cause all the rubber parts to swell. and turn the fluid black. You may need to replace all brake components if this is the case. If the fluid is not contaminated you may be able to just release the pressure and wiggle the drum or pry to get it off.. Then you may just need to replace the wheel cylinder and or the brake hose. When you get the drum off you may notice the wheel cylinder has been leaking. With the line open press on the brake to verify the line is colgged or not.. When done bleed the whole system

Jul 15, 2009 | 2000 Kia Sephia

2 Answers

1997 Chevy 1500


you should never have to add tranny fluid unless it leaks chevy recomends replaceing the filter and fluid every 30,000 miles

Jun 11, 2009 | 1997 Chevrolet C1500

1 Answer

The Abs sign is on during driving what is wrong with it


If the brake warning light comes on when you apply the brakes, or is on continuously, it means that hydraulic pressure has been lost in one side of the brake system or that the fluid level in the master cylinder is dangerously low (due to a leak somewhere in the brake system). In either case, the fluid level in the master cylinder should be checked. Adding brake fluid to the master cylinder reservoir may temporarily solve the problem. But if there's a leak, the new fluid will soon be lost and the warning light will come back on.
Brake fluid leaks are serious because they may cause the brakes to fail! So avoid driving the vehicle until the system can be inspected to determine what's wrong. Leaks can occur in brake hoses, brake lines, disc brake calipers, drum brake wheel cylinders or the master cylinder itself. Wet spots at hose or line connections would indicate a leak that needs to be fixed.
Leaking brake fluid can also contaminate the brake linings, causing them to slip or grab. The uneven braking action that results may cause the vehicle to veer to one side when the brakes are applied. Brake shoes or pads that have been contaminated with brake fluid cannot be dried out and must be replaced.

Apr 26, 2009 | 2005 Toyota ECHO

1 Answer

Front Brakes


You may have this problem due to contaminated (and overheated) brake fluid. Most people don't usually flush out the brake system, which should be done whenever u do a brake job. Since yours are overheating also, that has to be diminishing the life of the fluid. Brake fluid will also absorb moisture (which is one reason u see instructions to use brake fluid from 'a sealed container.') So, be sure to thoroughly flush the system when u replace components this time, the contaminated fluid has been causing the calipers to 'drag' which wears out the brake pads prematurely.

Oct 28, 2008 | 1995 Dodge Caravan

1 Answer

1988 honda prelude brake caliper


You most likely have a problem w/ the brake fluid being contaminated. Have u ever had the brake fluid changed? Everytime u need brakes, u should bleed the brakes to remove the old fluid. This is something most people DO NOT do, and the old fluid ruins the calipers and brake cylinders. Look in the master cylinder at the fluid. Is it dark, or clear? When the fluid goes bad, it'll not be clear. Fluid also absorbs moisture which is terrible for the brake system. Make sure any bottles of brake fluid are closed tightly after opening. Moisture and contaminants will corrode the inside of the calipers and brake cylinders, and the pistons stick and bind, and will finally totally seize up. Flush the system starting at the bleeder that's the greatest distance away from the master cylinder, then next greatest distance, 3rd greatest, then closest. Bleed each wheel until fluid runs out clear, and then a few more times to be sure u flushed it all out. Check the master cylinder often, so u don't run it so low it draws in air, or u will have more bleeding to do to get the air out too. U might be able to dissassemble the caliper if it's very recently changed, clean it up, check for any crud and coat w/ clean fluid, reassemble. Good Luck, let me know how u make out. countrycurt0

Aug 10, 2008 | 1988 Honda Prelude

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